MBSS Site Summary for: BYNU-201-X-2006


Located on Bynum Run in the Bynum Run watershed, 8-digit code: 02130704.
This stream was visited in the spring on 3/30/2006 and again in the summer on 7/11/2006.

Index of Biotic Integrity (IBI) Results:

An Index of Biotic Integrity (IBI) is a scientific tool used to identify and classify stream health. An IBI associates anthropogenic influences on a stream or with biological condition in the stream, and is formulated using data developed from biosurveys.
Details on the development and application of MBSS IBIs are in this document.
Fish IBI Good - 4.7 / 5.0
Benthic IBI Poor - 1.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 4,763 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 40 %
Agricultural Land Use 33 %
Forested Land Use 25 %


Stream showing woody debris, logs, and rocky substrate.
An example of woody debris in a stream.

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 60 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 45 meters 		14/20 (Suboptimal)
Shading 78 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 22.6 ° C
Dissolved oxygen (DO) 8.7 mg/L
pH (lab) 8.3
Conductivity 300 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1099 µeq/L
Dissolved organic carbon (DOC) 1.8834 mg/L

Biological Stream Condition:

Surveys of the organisms living within a stream can give indications of stream health. Species richness, or the number of different species present, as well as indicator species (species whose presence, absence or abundance can serve as a measure of environmental conditions) are informative for stream health. 		Close-up of a mayfly indicator species.

Fish Survey Results:
The following 19 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blue Ridge Sculpin 261
Green Sunfish 24
Longnose Dace 21
White Sucker 21
American Eel 17
Tessellated Darter 17
Common Shiner 16
Cutlip Minnow 16
Swallowtail Shiner 11
Satinfin Shiner 7
Northern Hogsucker 6
Redbreast Sunfish 6
River Chub 5
Blacknose Dace 4
Creek Chub 2
Margined Madtom 2
Rosyside Dace 2
Smallmouth Bass 2
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Orconectes limosus

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 37
Orthocladiinae Midge 21
Cheumatopsyche Net-Spinning Caddisfly 11
Cricotopus Non-Biting Midges 10
Stenelmis Beetle 8
Chimarra Fingernet Caddisfly 5
Crangonyx Amphipod 4
Hydropsyche Net-Spinning Caddisfly 3
Oulimnius Riffle Beetle 3
Ancyronyx Spider Riffle Beetle 2
Optioservus Riffle Beetle 2
Rheocricotopus Non-Biting Midges 2
Diamesa Bloodworm 2
Microcylloepus Riffle Beetle 1
Psephenus Water Penny 1
Kick net sampling for macroinvertebrates.
Sampling with a kick net.

Information disclaimer: The information and data on this page is for guidance and general planning purposes only. It should not be used to make decisions on specific matters.